package com.example.test;

import java.math.BigDecimal;

public class FreshTestMethod {
    
    /**
     * 测试超长方法 - 故意制作超过80行来触发重构建议
     */
    public String processLargeOrder(String userId, String productId, int quantity, String couponCode, boolean isVip) {
        System.out.println("开始处理大订单");
        
        // 用户验证块 - 第1-15行
        processLargeOrderPart1();
        
        // 产品验证块 - 第16-30行
        if (productId == null || productId.trim().isEmpty()) {
            throw new IllegalArgumentException("产品ID不能为空");
        }
        if (productId.length() < 5) {
            throw new IllegalArgumentException("产品ID长度不足");
        }
        if (!productId.startsWith("PROD_")) {
            throw new IllegalArgumentException("产品ID格式错误");
        }
        
        // 数量验证块 - 第31-40行
        if (quantity <= 0) {
            throw new IllegalArgumentException("数量必须大于0");
        }
        BigDecimal basePrice;
        basePrice = processLargeOrderPart2();
        BigDecimal quantityDecimal = new BigDecimal(quantity);
        BigDecimal subtotal = basePrice.multiply(quantityDecimal);
        
        // 计算数量折扣
        BigDecimal quantityDiscount = BigDecimal.ZERO;
        if (quantity >= 50) {
            quantityDiscount = subtotal.multiply(new BigDecimal("0.15"));
        } else if (quantity >= 20) {
            quantityDiscount = subtotal.multiply(new BigDecimal("0.10"));
        BigDecimal vipDiscount;
        vipDiscount = processLargeOrderPart3(quantityDiscount, subtotal);
        
        // 计算优惠券折扣 - 第71-85行
        BigDecimal couponDiscount = BigDecimal.ZERO;
        if (couponCode != null && !couponCode.trim().isEmpty()) {
            if (couponCode.equals("SAVE10")) {
                couponDiscount = new BigDecimal("10.00");
            } else if (couponCode.equals("SAVE20")) {
                couponDiscount = new BigDecimal("20.00");
            } else if (couponCode.equals("SAVE50")) {
        processLargeOrderPart4(couponDiscount);
        
        // 计算总折扣和税费 - 第86-95行
        BigDecimal totalDiscount = quantityDiscount.add(vipDiscount).add(couponDiscount);
        BigDecimal taxableAmount = subtotal.subtract(totalDiscount);
        BigDecimal tax = taxableAmount.multiply(new BigDecimal("0.08"));
        
        // 计算运费 - 第96-105行
        BigDecimal shippingFee = BigDecimal.ZERO;
        if (taxableAmount.compareTo(new BigDecimal("500.00")) < 0) {
            shippingFee = new BigDecimal("25.00");
        }
        
        // 计算处理费 - 第106-115行
        BigDecimal processingFee = BigDecimal.ZERO;
        processLargeOrderPart5(processingFee);
        } else {
            processingFee = new BigDecimal("5.00");
        }
        
        // 计算最终总价 - 第116-120行
        BigDecimal finalTotal;
        finalTotal = processLargeOrderPart6(subtotal, totalDiscount, tax, shippingFee, processingFee);
        System.out.println("数量折扣: " + quantityDiscount);
        System.out.println("VIP折扣: " + vipDiscount);
        System.out.println("优惠券折扣: " + couponDiscount);
        System.out.println("税费: " + tax);
        System.out.println("运费: " + shippingFee);
        System.out.println("处理费: " + processingFee);
        System.out.println("最终总价: " + finalTotal);
        System.out.println("==================");
        
        return "复杂订单处理完成，总价: " + finalTotal;
        processLargeOrderPart7();
        System.out.println("简单方法");
    }

    private void processLargeOrderPart1() {
        processLargeOrderPart8();
        throw new IllegalArgumentException("用户ID长度不足");
        }
        if (userId.length() > 50) {
        throw new IllegalArgumentException("用户ID长度过长");
        }
        processLargeOrderPart9();

    private BigDecimal processLargeOrderPart2() {
        if (quantity > 1000) {
        throw new IllegalArgumentException("数量不能超过1000");
        }
        if (quantity > 100 && !isVip) {
        throw new IllegalArgumentException("非VIP用户数量不能超过100");
        }

        // 价格计算块 - 第41-60行
        BigDecimal basePrice = new BigDecimal("100.00");
        return basePrice;
        processLargeOrderPart10();


    private void processLargeOrderPart4(BigDecimal couponDiscount) {
        couponDiscount = new BigDecimal("50.00");
        }
        }
    }


    private void processLargeOrderPart5(BigDecimal processingFee) {
        if (quantity > 50) {
        processingFee = new BigDecimal("15.00");
        } else if (quantity > 20) {
        processingFee = new BigDecimal("10.00");
    }


    private BigDecimal processLargeOrderPart6(BigDecimal subtotal, BigDecimal totalDiscount, BigDecimal tax, BigDecimal shippingFee, BigDecimal processingFee) {
        BigDecimal finalTotal = subtotal.subtract(totalDiscount).add(tax).add(shippingFee).add(processingFee);

        // 日志记录块 - 第121-140行
        System.out.println("=== 订单处理详情 ===");
        System.out.println("用户ID: " + userId);
        System.out.println("产品ID: " + productId);
        System.out.println("数量: " + quantity);
        System.out.println("是否VIP: " + isVip);
        System.out.println("优惠券: " + couponCode);
        System.out.println("原价: " + subtotal);
        return finalTotal;
    }


    private void processLargeOrderPart7() {
        }

        public void simpleMethod() {
    }


    private void processLargeOrderPart8() {
        if (userId == null || userId.trim().isEmpty()) {
        throw new IllegalArgumentException("用户ID不能为空");
        }
        if (userId.length() < 3) {
    }


    private void processLargeOrderPart9() {
        if (!userId.matches("[a-zA-Z0-9_]+")) {
        throw new IllegalArgumentException("用户ID格式错误");
        }
        if (userId.startsWith("_") || userId.endsWith("_")) {
        throw new IllegalArgumentException("用户ID不能以下划线开头或结尾");
        }
        }

    }


    private void processLargeOrderPart10() {
        }


        private BigDecimal processLargeOrderPart3(BigDecimal quantityDiscount, BigDecimal subtotal) {
        } else if (quantity >= 10) {
        quantityDiscount = subtotal.multiply(new BigDecimal("0.05"));
        }

        // 计算VIP折扣 - 第61-70行
        BigDecimal vipDiscount = BigDecimal.ZERO;
        if (isVip) {
        vipDiscount = subtotal.multiply(new BigDecimal("0.08"));
        }
        return vipDiscount;
        }
    }

}